JWST Telescope Pathfinder
Here is the Northrop Grumman Integration and Test team successfully transferring the "pathfinder" secondary mirror support structure from the floor assembly jig to the backplane "pathfinder". Essentially this is the test version of the telescope structure (minus the "wings"). (Here is a photo of the wings of the backplane: www.flickr.com/photos/nasawebbtelescope/8569916054/in/set...)
Credit: Northrop Grumman
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Taken on March 21, 2014